Water and Wastewater Treatment Plant and System Operators Salary in Western Washington

BLS Occupational Employment & Wage Statistics • May 2025 • Western Washington nonmetropolitan area

Median annual salary $69,300 +18.9% vs national
Median hourly $33.32
10th percentile $49,430
90th percentile $95,020
Employed locally 290
National median $58,260

Compare Water and Wastewater Treatment Plant and System Operators salary & buying power

Type a city below to see how Western Washington stacks up on salary and cost of living.

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Water and Wastewater Treatment Plant and System Operators
in
Western Washington
vs

    Salary percentile breakdown

    10th
    $49,430
    25th
    $58,390
    50th (median)
    $69,300
    75th
    $81,700
    90th
    $95,020

    Top-paying metros for Water and Wastewater Treatment Plant and System Operators

    Metro areaMedian salary
    San Francisco-Oakland-Fremont, CA $123,390
    San Jose-Sunnyvale-Santa Clara, CA $106,440
    Vallejo, CA $101,670
    Napa, CA $99,450
    Fairbanks-College, AK $91,010
    Salinas, CA $90,610

    Related occupations in Western Washington

    OccupationMedian salary
    Miscellaneous Assemblers and Fabricators $46,370
    First-Line Supervisors of Production and Operating Workers $75,880
    Meat, Poultry, and Fish Cutters and Trimmers $36,260
    Sawing Machine Setters, Operators, and Tenders, Wood $51,230
    Welders, Cutters, Solderers, and Brazers $55,720
    Woodworking Machine Setters, Operators, and Tenders, Except Sawing $52,290

    Frequently asked questions

    How much do Water and Wastewater Treatment Plant and System Operators make per hour in Western Washington?

    The median hourly wage for Water and Wastewater Treatment Plant and System Operators in Western Washington is $33.32, based on BLS OEWS 2025 data. Top earners (90th percentile) make $44.61 or more per hour.

    Is Western Washington above or below average for Water and Wastewater Treatment Plant and System Operators salaries?

    The median Water and Wastewater Treatment Plant and System Operators salary in Western Washington is 18.9% above the national median of $58,260. The national figure is from BLS OEWS 2025 data covering all US metropolitan areas.

    What is the entry-level salary for Water and Wastewater Treatment Plant and System Operators in Western Washington?

    Entry-level Water and Wastewater Treatment Plant and System Operators (10th percentile) earn around $49,430 per year in Western Washington. The 25th percentile — typically workers with 1–3 years of experience — earn approximately $58,390.